Abstract: Objective To explore the laparoscopic treatment of colorectal cancer with synchronous hepatic metastasis at the same stage. Methods Thirty-two colorectal cancer patients with synchronous hepatic metastasis received laparoscopic resection of colorectal cancer，laparoscopic resection of liver metastases and radiofrequency ablation treatment of liver cancer under direct vision at the same time. Results The operations were performed well. The duration of operations was 280 min（range 220-384min）. The amount of bleeding ranged from 240 to 1300ml. No serious complications occurred. All the patients were followed up for 6-32 months after operation，among whom 18 patients were still alive. Seven patients died due to lung，brain or abdominal cavity metastases，3 patients due to recidivation，2 patients of brain hemorrhage and 2 patients of myocardial infarction. Conclusion The treatment of colorectal cancer with synchronous hepatic metastasis using laparoscopic resection of colorectal cancer and liver metastases，as well as radiofrequency ablation methods at the same stage is safe and effective and the trauma in second stage surgery can be avoided.